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11
Docker of server with cli question (lemmy.world)
submitted 6 days ago by Valmond@lemmy.world to c/asklemmy@lemmy.world
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Hi everybody!

I'm making a decentralised hosting software, and I often get the question "is there a docker?" from people wanting to try it out. There isn't so I have tried making one, but I don't really know how to set it all up...

The soft is split in two:

  • A server that is connected to the internet (both ways, so a port forward is needed)

  • A command line utility

There is also a storage space (in some /data/ folder) and a database (a SQLite one living in some /db/ folder).

Compiling a docker image for the server seems somewhat easy, the user have to provide the two folders and forward the port I guess.

But the command line tool is where I have no idea how to make it not a user experience nightmare in a docker image. Should I publish the soft as a cli or should I try to integrate it into the/a docker image anyways? Security is of importance, so maybe people don't want to run an "unknown" cli on their PC but would be okay if it's all docker used.

Thank you all!

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[โ€“] CameronDev@programming.dev 1 points 6 days ago* (last edited 6 days ago) (1 children)

Yeah, it runs inside the container, so that won't have access to the external filesystem's. And intermediate directory might work, but itll be a bit fiddly.

Maybe you could supply a script that does something like:

docker cp $FILE server_container:/tmp/workfile.jpg
docker exec -it cli_tool /tmp/workfile.jpg

Could do a reverse script as well for download?

Edit: you can also pipe the files to stdin of the command:

cat input.jpg | docker exec -it server_container cli_tool upload

docker exec - it server_container cli_tool download > output.jpg

[โ€“] Valmond@lemmy.world 2 points 6 days ago

Yeah I probably have to build some sort of "pass through" script if I want the cli in a docker, which sort of defies the purpose of ease of use.

Maybe a simple script (just forwarding things and copying files) would be better "tolerated" as it can be checked more easily for bad code. Or I could just "make it work" so people can have a go at it at least I guess.

Thanks again!